Rotating stalk cutting roller



ROTATING STALK CUTTING ROLLER Filed Nov. 17, 1949 INVENTOR. JAGOBUS M- LA/VDRY ATTORNEY Patented Feb. 16, 1954 ROTATING S IAIJK CUTTINGROLIZER Jacobus-Msliandrm Siimmetland; l?q1'itisl 1,-.--v

Columbia,

Application N ovember l'l,

fisclaimss (Cl. 5519-1-18)?- Canadan 1949;SrialNbr12'li922" Z accompanyingrzdrawings :fOlErthG illustrative em-i wh ther-invention; wherein:

rauplanaviewoof myzimplements Fig: 214s was sides View of 1: my; implement; on a;

vide{amimplementwherebymover.crops; grasss; reduced-'scalegande weedsrandtheglike :can bezcontrolled; without dew straying; them and? which .1 leaves the. cut-012?" crushed parts gofsuch covercropseand the dike on therground toserve-asamulch:

The advantages otlthisinventionx includeethec: 1o followingieatures: theimplement :is' a-daptedwto beg drawn byxa ztractormrr the dike-over the :covercrops and-sithasnmeans to; bend andlayadowny-the stems aofzthe cover :cropsdnzadvanceof the blades;- of. theeoutterxroll'ert the stems arev cut or; crushed; 15 between. the: blade edges: and the; ground; the. stemszlaid on-.. the ground. are cut so *asrto leaves only-aeshort ipart rot-the. stems still istanding 'after-r the passage :of the roller; .the weight:and inertia; oiithei masszuof they-implement. in',..motion; Sand" of thewtractive force are fully; utilized for forcing; thet-iblades .thr ou-gh :the-.-stems 10f cover-7. crops: and the? like and; again-st; and. into the ground by means: of ,.a rapidly revolving: roller; the; blades are.- arranged at. such. angle that .the= ;combined1:1 Weight,- inertia: and traction-10f.- the implementaand;ltractor in-motion bears: onqonly a .portionbf one-edge at: a. time.= topress said rollerv edges againstthe reaction force of the ground; the load: bearing ion-each point-70f the edgesshiftsrapidlyp alongeach ledgerasthe roller revolves; and asrthesz angular. position of thewblades of the; roller aim relation to the: ground; at 'each point, of rtheedges; varies sgreatlyzand rapidly; the rollerr-does noti Fig. Bale aysectionalsview of. the :roller, von-itheisame scale as Fiigz2iav Inrcarryingt'out;:myainvention I make. use. -.of :ar.

frame;:.l iofiheavymonstruction; The: top. surface 2 Of-I116: frame is substantially .Efiat i110. permitrthe securing; of,faddftiomztl;weights;thereon;v such: as ti'InbBPSi'iOYJthfi'LHKEi. Aatongueaor 'shaftt flsextendsa forwardly zfmmabout theoniddleofthe frame-for r connectionitora tractiontdevice; for I instance to: a". -tra.ctcr;.-.

AiroHer-M: extends"slongitudinallyiinithe 5 frame betweenslihe: end plates 535, Each end; of ,the roller hassazjournal;shaftq'lu journalled yin the adjacent. enck-plateifi so that-the axis of therroller is trans verse relatiyely; to the direction of ,motion of the frame when drawnby aztractor; or the-like. The

radius; of-sthe roller.-is.-glarger.- than the distance; between the axis of the journal and the-bottom edges n of the frame-T. son, that, V in; operation; the

roller. carries-the;- frame.-.; and.- holds it: off the a ground.

Attransversee member ori cross bar: 8 extends from..,end; .to end-ref. theeframe, in front of and, in 1 proximity 'of.theerolleradi The-distance between said icrossabar Send the roller 4 is such that the cross ,ban 3 bends-tthetstems ,of the cover crop 1 and the like. downward and -;toward thedirection 1 of.- motion of. the frame] and holds it in that position..-until=the'roller lb'earsdown on the collectzmaterial thataisiliablezto. impede the oper 355 stem.

ation 0t.- the--ro11ers; there; is no 3 necessityctoa sharpen the bladeswhen the, edgesyolrrendulledja theuim-plementhas a constructionof rigidity yet islight .and. economical.

The railer 4 inthe hereimillustraticnincludes three, bladess disposed; substantially helically along and. around a: central. tubular shaft l i. ThGvblddS, 9; are. welded; to one; another along.

Igamawarerthatsome. changes may-,be-madee: 40a their;respective-linesot contactiZ, and to the in l the general arrangements ,and. combinations ofth'e several devices and parts, as :Well as:in the; details of the construction thereof without de:

parting; from the scope of'thepresentvinventihnl as'set forth-inth'e following specification, andaa definediin the f allowing claims; hence I ,do not limit my; invention to the exact arrangements; andbom-binations of "the said -devi-ce'andparts as dscribedinthesaid specification, orde-I confine -myself to=the exact details of the *construc- 59 tion of :thesaid Tpartsas illustratedfinrtheacccm panying drawings.:.

With1theeforegoing;andziother :objects qimviews; which; will. be a made; manifestiii theefollowingg detailed: deseriptiom. reference-a is: tow. thes roller meets another surface under 120 degrees. The cutting edges are only three in number and revolve in circles of comparatively small diameter around the axis of the roller 4. A portion of a cutting edge is always directed toward the ground and at least one blade is always in contact with the ground and is subject to the reaction force of the ground against the load on the blade for crushing the stem thereunder. This point of contact shifts along each edge as the roller rotates. The frame, together with any additional weight thereon constitute a single mass, the weight and inertia of which form the greater part of the load bearing on the portions of the cutting edge in contact with the ground, and this load acts in forcing said cutting edges through the stems of the cover crops and the like and against or into the ground.

The implement herein described is rigid, yet light and economical in construction, it cuts along the ground at sufficiently close intervals to cut all stems in its path; the blades are comparatively thin, yet stiff, to form cutting edges which require no sharpening; the roller structure is smoothly streamlined from end to end around the tubular shaft so as to avoid recesses and thereby to prevent the accumulation of material, and also to limit the penetration of the blades through the cover crop and against and into the ground; its roller has a constant rotation around its axis for a constant horizontal motion of the implement; it results in a periodic rapid increase of the load upon each point of each cutting edge in succession as the location on the edges at which the ground reacts to the load shifts rapidly from one end toward the other end along the cutting edge of one blade for every one third turn of the roller; the blades are tangent to the tubular shaft along its entire length and inclose a center space or hub without access from the outside; the implement crushes and cuts efficiently and positively and is eminently adapted for its purposes.

I claim:

1. In an agricultural implement of the character described, a frame having an opening, a roller having a shaft rotatably mounted on said frame in said opening, means to connect said frame to a power-driven device adapted to move said frame over said surface while being supported on said roller, at least three blades along and around said shaft arranged generally tangentially thereto, theinner edge of each of said blades being secured to the face of the adjacent blade along a line intermediate the edges of said latter blade, the outer edge of each of said blades and the planes of said blades being generally helicoidal, each of said blades being secured at its longitudinal ends to said shaft and extending helically through a proportional part of the circumference of said roller.

2. In an agricultural implement of the character described, a frame having an opening, a roller having a shaft rotatably mounted on said frame in said opening, means to connect said frame to a traction device adapted to pull said frame over said surface while being supported on said roller, at least three blades along and around said shaft arranged generally tangentially thereto, the inner edge of each of said blades being secured to the face of the adjacent blade along a line intermediate the edges of said latter blade, theouter edge of each of said blades and the planes of said blades being generally helicoidal, each of said blades being secured at its longitudinal ends to said shaft and extending helically through a proportional part of the circumference of said roller, whereby during the pulling of said roller over said surface only one of said blades will contact said surface principally at one portion of its longitudinal extent, said portion of contact shifting along said longitudinal extent of said blade.

3. In an agricultural implement of the character described, a frame having an opening, a roller having a shaft rotatably mounted on said frame in said opening, said frame being adapted to be operatively connected to a driving means to be moved over a surface while being supported on said roller, a plurality of longitudinal blades along and around said shaft arranged generally tangentially thereto and having generally helicoidal operatively connected to a traction device to be pulled over a surface while being supported on said roller, a plurality of longitudinal blades along and around said shaft arranged generally tangentially thereto and having generally helicoidal planes longitudinally with respect to the axis of said shaft and intersecting one another,=

being joined at their lines of intersection and secured at their longitudinal ends to said shaft, each of said blades extending helically through a proportional part of the circumference of said roller, whereby during the pulling of said roller over said surface only one of said blades will contact said surface principally at one portion of its longitudinal extent, said portion of contact shifting along said longitudinal extent of said blade.

5. In an agricultural implement of the character described, a frame having an opening, a roller having a shaft rotatably mounted on said frame in said opening, said frame being adapted to carry selected additional weight, means to connect said frame to atraction device to be moved over a' surface while being supported on said roller, a plurality of longitudinal blades along and around said shaft arranged generally tangentially thereto and having generally helicoidal planes longitudinally with respect to the axis of said shaft and intersecting one another, being joined at their lines of intersection and secured at their longi edge of eachof said blades being secured to the face of the adjacent blade along a line intermediate the edges of said latter blade, the outer edge of each of said blades and the planes of said blades being generally helicoidal, each of said blades being secured at its longitudinal ends to said shaft and extending helically through a proportional'part of the circumference of said roller, and a cross member secured to said frame in front of said roller extending downwardly to bend stems Number of vegetation on the ground ahead of said roller. 1,381,358 JACOBUS M. LANDRY. 1,429,163 2,193,009 References Cited in the file of this patent 5 2,430,143

UNITED STATES PATENTS 2,496,022

Number Name Date 223,750 O1c0tt Jan. 20, 1880 Number 621,695 Moss Mar. 21, 1899 10 37 57 745,564 Boggess Dec. 1, 1903 773,088

Mize Oct. 25, 1904 Name Date Sparks June 14, 1921 Peden Sept. 12, 1922 Riggs Mar. 12, 1940 Traver Nov. 4, 1947 Remonte Jan. 31, 1950 FOREIGN PATENTS Country Date France Aug. 6, 1930 

